Question

O S A. Find the value of the unknown interior angle x in the following figure :
45
751
B. Is it possible to have a triangle with the sides 6 cm , 3 cm, 2cm ?
C. PQR is a triangle, right angled at P. If PQ = 7 cm , PR = 24 cm , find QR.
D. Diagonals of a rhombus measure 6 cm and 8 cm. Find its perimeter.​

Answer 1

Answer:

In triangle ABC,

angle C = 75 degree

angle B = 45 degree

angle A = x

Therefore,

C+ 75=180 ( angles on a straight line is 180)

C=180-75

C=105

ATP,

A+B+C =180 (sum of all angles of a triangle is 180)

x+45+105= 180

x=180-150

x=30