FOR INTERNAL ASSESSMENT

Author:J P Mohindru & Bharat Mohindru

J P Mohindru Mathematics Solutions for Exercise - FOR INTERNAL ASSESSMENT

Simple step-by-step solutions to FOR INTERNAL ASSESSMENT questions of For Internal Assessment from Modern's abc+ of Mathematics for Class 10. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.

Questions from FOR INTERNAL ASSESSMENT with Hints & Solutions

MEDIUM
10th CBSE
IMPORTANT

In a triangle ABC,  C=90° and tan A=13. Find the value of sin A.cos B+cos A.sin B.

MEDIUM
10th CBSE
IMPORTANT

In a triangle ABC,  C=90° and tan A=13. Find the values of cos A.cos B-sin A.sin B.

MEDIUM
10th CBSE
IMPORTANT

From a point O on the ground, the angle of elevation of the top of a tower is 30° and that of the top of the flagstaff on the top of the tower is 60°. If the length of the flagstaff is 5 metres, find the height of the tower.

HARD
10th CBSE
IMPORTANT

A man on the cliff observes a boat at an angle of depression of 30° which is approaching the seashore to the point immediately beneath the observer with a uniform speed. Six minutes later, the angle of depression of the boat is found to be 60°. Find the total time taken(in minutes) by the boat to reach the shore.

HARD
10th CBSE
IMPORTANT

Prove that the opposite sides of a quadrilateral circumscribing a circle subtend supplementary angles at the centre of the circle.

MEDIUM
10th CBSE
IMPORTANT

In the figure, the sides AB, BC and CA of a triangle ABC touch a circle with centre O and radius 'r' at P, Q and R respectively.

Prove that AB+CQ=AC+BQ.

Question Image

MEDIUM
10th CBSE
IMPORTANT

In the figure, the sides AB, BC and CA of a triangle ABC touch a circle with centre O and radius 'r' at P, Q and R respectively.

Prove that ar(ABC)=1 2(perimeter of ABC)×r.

Question Image 

EASY
10th CBSE
IMPORTANT

Draw a more than ogive for the data given below, which gives the marks of 100 students

Marks: 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80
No, of Students 4 6 10 10 25 22 18 5