Question

A triangle ABC can be constructed in which AB=8cm, <A = 60° and
BC+AC is equal to
a) 6cm
b) 7cm
c) 8cm
d) 8.8cm​

Answer 1

Answer:

triangle all side equal

that's why

BC + AC equal to = 8cm

Answer 2

Concept

Sum of angles of a triangle are equal 180 and sum of two sides of triangle should be greater than third side.

Given

A triangle ABC in which AB=8cm, <A = 60°

Find

The length of BC+AC

Solution

• According to properties of triangles, the sum of all the angles must be equal to 180.
• Also sum of two sides must be greater than third side.
• Since AB=8cm , the sum of remaining sides must be greater than 8cm.
• On comparing with the options we can find only option (d) which is greater than 8cm. i.e. 8.8cm.

Hence BC+AC is equal to 8.8cm.

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