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Maths CBSE Live product
Class 7
A Tale of Three Intersecting lines
Exterior Equals the Sum!
1.
Calculate the value of x
Question:
2
m.
In the following triangle
\(ABC\)
,
\(∠A = 30°\)
,
\(∠B =54°\)
.
Determine the exterior angle
\(∠x\)
.
Answer:
\(x\) \(=\)
∠B + ∠C
∠A + ∠C
∠A + ∠B
[
By the
angle sum property
exterior angle property
.
]
The value of
\(x\)
is
84
54
60
\(°\).
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