Foundation Mathematics Primary 5 Geometry

A triangle has two sides that are each 7 cm long and a base of 5 cm. What type of triangle is it?

A Isosceles triangle
B Equilateral triangle
C Scalene triangle
D Right-angled triangle
Show Worked Solution

Worked Solution

Step 1: Check the side lengths. Two sides = 7 cm, one side = 5 cm. Step 2: Recall triangle types. Equilateral: all 3 sides equal. Isosceles: exactly 2 sides equal. Scalene: all 3 sides different. Step 3: Two sides are equal (7 cm = 7 cm), so the triangle is isosceles. Answer: Isosceles triangle

Correct answer: Isosceles triangle

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