Question

નીર)ને
Q.1 નીચે આપેલા પ્રસ્તોના માખ્યા મુજબ ઉત્તર લખો. (પ્રત્યેકનો 1 ગુણ)
દરેક ની નીચે આપેલા વિકલ્પોમાંથી સાચો વિકલ્પ પસંદ કરીને જવાબ લખો
1) AABC- AB = AC અને AB =75 ધ્યેય, તો AC=
A 30
(B) 15
(C) 20​

Answer 1

Answer:

Draw a perpendicular line to bisect the apex angle, A as well as to bisect the base of the triangle, BC, such that it meets BC at point, D. This will result into two equal right-angled triangles, namely ADB and ADC.

Using triangle ADB to solve the problem:

ADB is a right-angled triangle (D = 90 degrees ) while angle B = 75 degrees (given)

The sum of angles of a triangle = 180 degrees

180 - (90 + 75) = 15 degrees

One-half of angle A = 15 degrees

Angle A = 15 degrees * 2

Angle A = 30 degrees

Answer 2

Answer:

Write the answer as per the preamble given below. (1 mark each)

Write the answer by selecting the correct option from each of the options given below

1) AABC- AB = AC and AB = 75 goal, then AC =

A 30

(B) 15

C)20