Question

one side of triangle is 12cm and other side is 11cm area is 66 what is the length of other side​

Answer 1

Area = length × breadth

(b) Perimeter = 2 (length + breadth)

(c) Diagonal = ( )( ) 2 2 length + breadth

• Square

(a) Area = (side)2

(b) Perimeter = 4 × side

(c) Diagonal = 2 × side

• Triangle with base (b) and altitude (h)

Area =

1

2

× ×b h

• Triangle with sides as a, b, c

(i) Semi-perimeter = 2

abc

s

+ + =

(ii) Area = ss a s b s c ( )( )( ) ––– (Heron’s Formula)

• Isosceles triangle, with base a and equal sides b........ HOPE ITS HELP YOU