No.of sides=4
sum of angle of quadrilateral
=(n-2)*180°
=(4-2)*180°
=2*180°
=360°
Answer:
4
Step-by-step explanation:

t=2 should be your answer!
Answer:
<h2>
31.7 cm^2</h2>
Solution,
In ∆ ABC
< A + <B + < C = 180°
or, 72 + 59 + <C = 180°
or, 131 + <C = 180°
or, <C = 180 - 131
< C = 49
Area of ∆ABC = 1/2 ab sin C
= 1/2 * 12 * 7 * sin 49
= 42 * sin 49
= 31.7 ( approximately)
Hope this helps...
Good luck on your assignment...
Answer:
f^1/4
Step-by-step explanation: