Question

1. A traffic signal board indicating school ahead is an equilateral triangle with side a.  Find the area of the signal board, using heron's formula. If its perimeter is 180cm what will be the area of the signal board? 

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9.3

30. The shadow of a tower standing on a level ground to be 40m longer when the sun’s altitude is 30° than when it is 60°. Find the height of the tower.

maths class 9

class 9 maths

Give the geometric representation of the following

a. 2x+1=5

Give the geometric representation of the following

a. 2x+1=5

Give the geometric representation of the following

a. 2x+1=5

Give the geometric representation of the following

a. 2x+1=5

Give the geometric representation of the following

a. 2x+1=5

Give the geometric representation of the following

a. 2x+1=5

Find two consecutive positive integers sum of whose square is 365.