Question

Given ABCD, find mA.

Answer 1

(Given away medals)

Answer 2

pls zoom the image.. can't see head or tail of it..

Answer 3

86 - x = 50 + 3x
solve for x

then use x in this equation..
angle a = 86 - x
to get angle a

Answer 4

X=9 So the answer will be 89?

Answer 5

answer is 86 - 9
which is 77

Answer 6

how many is the sum of angle A ,angle B ,angle C and angle D ?

Answer 7

so equale 360 degree

m < B = m<D = 103 degree

m<B + m<D = 206

360-206 = 154

154/2 = 77

so m<A = 77 degree

m<A = m<C

50+3x = 86-x

3x+x=86-50

4x=36

x=9

50+3x=86-x

50+3*9 = 86-9

50+27 = 77

77 = 77

so m<A =77 degree