Question

one side of parellelogram is 13 cm and other side is 7 cm find the length of other 2 types.​

Answer 1

Answer:

other two sides will be 13cm and 7 cm

Step-by-step explanation:

because opposite side are parallel and equal

hope helps u

Answer 2

Area of triangle =

s(s−a)(s−b)(s−c)

Area of parallelogram=2× Area of the triangle formed by the adjacent sides and the diagonal

Sides are 17cm,12cm,25cm

Semi perimeter(s)=

2

12+17+25

=

2

54

=27cm

Area =

27(27−12)(27−17)(27−25)

⇒A=

27⋅15⋅10⋅2

⇒A=

3×3×3×3×5×2×5×2

⇒A=3×3×5×2

⇒A=90cm

2

∴ Area of parallelogram =2(90)=180cm

2

.

Let the height of the parallelogram be h

Given base b=12cm

A=b×h

⇒180=12×h

⇒

12

180

=h

∴h=15cm

∴ Length of altitude =h=15cm

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