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Zagorodniypolina5
12.08.2020 •
Mathematics
the hypotenuse and a side of a right angled triangle are 13cm and5cm respectively. fined the length of the third side
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Ответ:
Step-by-step explanation:
Ответ:
m<R = 137°
Step-by-step explanation:
Points to remember
Sum of opposite angles of a cyclic quadrilateral is 180°.
From the figure we can see a cyclic quadrilateral.
To find the value of y
From the figure we get angle R and angle P are opposite to each other.
m<R = 3y + 8 and m<P = y
m<R + m<P = 180
3y + 8 + y = 180
4y + 8 = 180
4y = 180 - 8 = 172
y = 172/4 = 43
To find the measure of R
m<R = 3y + 8
= 3*43 + 8
= 129 + 8 = 137