Question

1 Kailash measured the angles of three quadrilaterals as given below. Some of the measurements are
correct and some are wrong. State which of the measurements are correct and which are incorrect.
a Quadrilateral ABCD: ZA = 60°, ZB = 90°, ZC = 126°, ZD = 54°
b Quadrilateral PQRS: ZP = 70°, ZQ=130°, ZR = 80°, ZS = 80°
c Quadrilateral MNOP: ZM= 110°, ZN = 105°, 20 = 90°, ZP = 100°​

Answer 1

Answer:

Only option ( b ) is correct .

Step-by-step explanation:

option B is correct because the sum of all four angles of quadrilateral PQRS is 360 degree .

AND we know that the sum of quadrilateral is 360 degree .

Make my answer as brainlist

Answer 2

Answer:

The only correct measurement is b)

Step-by-step explanation:

Angle Sum property is a way to find out if the measurements are right as all sides must add up to 360º, no more no less.

If you add all the angles of quadrilateral A, i.e 60, 90, 126 and 54, you get 330º ≠ 360º

Meanwhile, adding quadrilateral B's angles i.e 70, 130, 80 and 54 will give you 360º which proves that B is a quadrilateral

While C's angles i.e 110, 105, 90 and 100, will give you 405º ≠ 360º

Hope this helps...