Question

A quadrilateral has 3 acute angles each measuring 70 degree . the measures of the fourth angle is

a. 70 degree
b. 85 degree
c. 120 degree
d. 150 deg6​

Answer 1

Answer:

150degrees...............

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Answer 2

Answer:

d)150°

Step-by-step explanation:

let quadrilateral be ABCD

Here A=70° B=70° C=70°

D=?

we know that,

sum of all angles of quadrilateral is 360

then,

A+B+C+D=360

70+70+70+D=360

D=360-210

D=150°

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