Question

1. Three hourses are tethered with 7-metre long ropes
at the three corners of a triangular field having
sides 20m, 34 m and 42 m. find the area of
plot which can be grazed by the horses. Also, find the
the plot which remains

ungrazed​

Answer 1

Answer:

Step-by-step explanation:

Given,

Sides of triangular field is 20m,34mand42m

Semi-perimeter = 220m+34m+42m​

                      =296​

                      =48m

Area of field=48(48−20)(48−34)(48−42)

​

                  =48×28×14×6

​

                  =112896

​

                  =336m2

We know that sum of angles of triangles =180

Thus, Area gazed

=Area of sector APQ+Area of sector BRS+Area of sector CTU

=Area of semicircle with radius 7m

=2π​×(7m)2

=1422​×(49m)2

=77m2

Area of field-Area of gazed

=(336−77)m2

=259m2

Area of ungazed is 259m2

Answer 2

Answer:

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