Question

The angles of a quadriletral abcd are angle a=35°,b=65°,c=70°.what is the measure of angle d?state whether he quadriletral is concave or convex

Answer 1

Step-by-step explanation:

35+65+70+d=360( sum of interior angle property)

d+170=360

d=190

if one angle is more than 180 then the quadrilateral is concave quadrilateral

Answer 2

Answer:

The answer is concave

Step-by-step explanation: