Question

So,
+ 80° + 100° + 75°
x + 2550
100
360°
360°
= 360° - 225º = 105
1750
Hence, measure of x is 105.
EXERCISE 3.1
1. In the adjoining figure ABCD is a quadrilateral :
(a) How many pairs of adjacent sides are there? Name them.
(b) How many pairs of adjacent angles are there? Name them.
(c) How many diagonals are there? Name them.
B.​

Answer 1

Answer:

what is this bro apply the formula than solve

Answer 2

Answer:

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