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Subjects
Mathematics CBSE
Class 7
Triangle and its properties
Special triangles
1.
Calculate sum of interior angles and perimeter of equilateral triangle
Exercise condition:
3
m.
The following triangle \(ABC\) is an equilateral triangle with \(AC\) \(= 5.7 cm\).
1
.
The total measure of angle
\(A\), \(B\),
and
\(C\)
is
cannot be determined
180°
120°
90°
.
2
.
Perimeter of the triangle
\(ABC\)
is
180
17.1
5.7
\(cm\).
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