Question

The slant height of a cone is 10 cm and radius of the base is 7 cm, then TSA
1) 374 sq.cm 2) 474 sq.cm 3) 378 sq.cm 4) None
​

Answer 1

$\large{explantion}$

given slant hieght=10cm

radius of the cone=7cm

$\large{formula}$

total suraface area=πr(h+r)

so then

.

=

$\frac{22}{7} \times 7cm(10cm + 7cm)$

$tsa = 374 {cm}^{2}$

$\large{tsa=374cmsquare}$

Answer 2

given slant hieght=10cm

radius of the cone=7cm

\large{formula}formula

total suraface area=πr(h+r)

so then

.

=

\frac{22}{7} \times 7cm(10cm + 7cm)

7

22

×7cm(10cm+7cm)

tsa = 374 {cm}^{2}tsa=374cm

2

\large{tsa=374cmsquare}tsa=374cmsquare