Question

please solve this question by full explanation​

Answer 1

hey mate!

a) angle ACB = angle CAB = x ( angles opposite to equal sides are equal )

so, x + x + 90 degree = 180 degree ( Angle sum property of triangle)

so, 2x + 90 = 180 degree

so, 2x = 180 - 90 = 90degree

so, x = 90/2 = 45 degree

Now, angle ACB + angle y = 180 degree ( Linear pair )

so, angle y = 180 - 45 = 135 degree

b) Angle x = twice of 60 degree

so, angle x = 2 ( 60) = 120 degree

now, angle x + angle y = 360 degree ( complete angle )

so, 120 degree + angle y = 360 degree

so, angle y = 360 - 120 = 240 degree

hope this helps you

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