Q.1.

Possible length of the three sides of a triangle are :­

Q.2.

What is the altitude of an equilateral triangle whose side is 12√3 cm?

Q.3.

An angle is smaller than its supplementary by 30°. What is the measure of the angle?

Q.4.

What is the reflection of the point (-2, 5) in the line x = -1?

Q.5.

PQR is an equilateral triangle. MN is drawn parallel to QR such that M is on PQ and N is on PR. If PN = 6 cm, then the length of MN is

Q.6.

O is the centre of a circle and AB is the tangent to it touching at B . If OB = 3 cm. and OA = 5 cm , then the measure of AB in cm

Q.7.

Two chords AB and CD of a circle with centre O intersect at P. If ∠APC = 40°. Then the value of ∠AOC + ∠BOD is

Q.8.

If the difference between the measures of the two smaller angles of a right angled triangle is 8°, then the smallest angle is

Q.9.

Radius of cross section of a solid right circular cylindrical rod is 3.2 dm. The rod is melted and 44 equal solid cubes of side 8 cm are formed. The length of the rod is (Take Π = 22/7)

Q.10.

ΔXYZ is similar to ΔPQR. If ratio of Perimeter of ΔXYZ and Perimeter of ΔPQR is 16:9 and PQ = 3.6 cm, then what is the length(in cm) of XY?

Q.11.

Calculate the length of the tangent (in cm) which is drawn from a point at a distance of 13 cm from the centre and the largest chord of that circle is 10 cm.

Q.12.

The line segment AB intersects the straight line CD at B; AB will be smallest when ∠ ABD (in degrees) is

Q.13.

Smaller diagonal of a rhombus is equal to length of its sides. If length of each side is 6 cm, then what is the area (in sq.cm) of an equilateral triangle whose side is equal to the bigger diagonal of the rhombus?

Q.14.

The length of the diagonal and the breadth of a rectangle are 17 cm and 8 cm respectively. Find its perimeter (in cm).

Q.15.

If the measure of the interior angle of a regular polygon is 90 deg greater than the measure of its exterior angle, then how many sides does it have ?

 

Q.16.

What must be the length (in cm) of the diagonal of a rectangle if its area and breadth are 120 sq.cm and 8 cm respectively ?

Q.17.

In a triangle the length of the side opposite the angle which measures 60° is 6√3 cm. What is the length of the side opposite to the angle which measures 90°? 

Q.18.

Points P and Q lie on side AB and AC of triangle ABC respectively such that segment PQ is parallel to side BC. If the ratio of AP:PB is 1:4 and area of Δ APQ is 4 sq cm, what is the area of trapezium PQCB?

Q.19.

The diagonals are not perpendicular in a _____.

Q.20.

A chord of length 60 cm is at a distance of 16 cm from the centre of a circle. What is the radius (in cm) of the circle?

Q.21.

In a triangle ABC, if A +C = 140° and A + 3B = 180°, then A is equal to

Q.22.

The point where the 3 medians of a triangle meet is called

Q.23.

In triangle ABC, O is the orthocenter and angle BOC is 120 deg. Calculate angle BAC.

Q.24.

If in ΔABC, DE ||BC, AB = 7.5cm, BD = 6cm and DE = 2cm, then the length of BC in cm is

Q.25.

Which of the following is not true for a rhombus?

Q.26.

In a cyclic quadrilateral ABCD , the side AB is extended to a point X. If ∠XBC = 82° and ∠ADB = 47° , then the value of ∠BDC is

Q.27.

Which one of the following combination of measurements can form the sides of a triangle?

Q.28.

The radius of a cylindrical milk container is half its height and surface area of the inner part is 616 sq.cm. The amount of milk that the container can hold, approximately, is [ Use : √5 = 2.23 and π = 22/7 ]

Q.29.

AB is a chord of the circle and its center is “O”. ON is perpendicular to AB. If the length of AB=20 cm, ON-(2√11) cm, find the radius (in cm) of the circle.

Q.30.

In ΔPQR, ∠QPR = 45° and the bisectors of ∠PQR and ∠PRQ meets at O. What is the value (in degrees) of ∠QOR?

Q.31.

Which of the following condition is sufficient to state that triangle ABC and DEF are similar?

Q.32.

A circle is inscribed in a square. If the length of the diagonal of the square is 14√2 cm, what is the area (in sq cm) of the circle?

Q.33.

ΔABC is isosceles having AB = AC and ∠A = 40°. Bisectors PO and OQ of the exterior angles ∠ABD and ∠ACE formed by producing BC on both sides, meet at O. Then the value of ∠BOC is

Q.34.

A cylindrical capsule has hemispherical ends of the radii equal to radius of the cylindrical part. If length of the capsule is 40 m and radius 6 m, what is the total surface area of this capsule?

Q.35.

If the diameter of a circle is 35 cm, then what will be its circumference (in cm)?

Q.36.

Find length of the arc whose central angle is 90° and radius of the circle is 3.5 cm?

Q.37.

Find the total surface area (in cm2) of a right circular cone of diameter 21 cm and slant height 11 cm.

Q.38.

ABC is a right angled triangle with angle A = 90 deg. Then the value of cos2A+cos2B+cos2C is

Q.39.

The surface area of a sphere is 5544 sq.cm. Find its diameter (in cm).

Q.40.

O is the centre of the circle and ∠AOB = 150°, and the shaded portion is x part of the circular region, then x = ?

Q.41.

Which of the following option is CORRECT about the figure shown below?

Q.42.

The heights of a cone and a cylinder are equal. The radii of their bases are in the ratio 2:The ratio of their volumes is:

Q.43.

The area and the length of one of the diagonals of a rhombus is 60 cm2 and 8 cm respectively. Find the length of its other diagonal (in cm).

Q.44.

In a circle, a chord, 5√2 cm long, makes a right angle at the centre. Then the length of the radius of the circle will be

Q.45.

The whole surface area of a pyramid whose base is a regular polygon is 340 cm2 and area of its base is 100 cm2 . Area of each lateral face is 30 cmThen the number of lateral faces is

Q.46.

Three solid spheres of radius 3 cm, 4 cm and 5 cm are melted and recasted into a solid sphere. What will be the percentage decrease in the surface area?

Q.47.

The lengths of two parallel sides of a trapezium are 21 cm and 9 cm. If its height is 10 cm, then what is the area (in cm2) of the trapezium?

Q.48.

ΔPQR has sides PQ and PR measuring 983 and 893 units respectively. How many such triangles are possible with all integral sides?

Q.49.

A tent is to be built in the form of a cylinder of radius 5 m surmounted by a cone of the same radius. If the height of the cylindrical part is 6 m and slant height of the conical part is 10 m, how much canvas will be required to build the tent? Allow 20% extra canvas for folding and stitching. (Take π = 22/7)

Q.50.

The chord AB of a circle of centre O subtends an angle θ with the tangent at A to the circle. Then measure of∠ABO is