Question

find It with full solution step by step​

Answer 1

Step-by-step explanation:

angle A + angle B + Angle C + Angle D=360°( ASP of quadrilateral)

90°+90°+C+D=360°

angle C + angle D= 360°-180°

angle C + angle D=180°

Hence, proved.

Answer 2

Step-by-step explanation:

angle A+angle B+angle C+angle D=360⁰

(ASP quadrilateral)

90+90+C+D=360⁰

180⁰+C+D

angle C+angle D=360⁰-180⁰

angle C+angle D=180⁰

henCE provide that all have 90⁰ angle