Question

1. Area of a equilateral triangle by heron's formula. Where a=b=c is _____ units.

a)
$\sqrt{ \frac{3}{4} {a}^{2} }$

b)
$\sqrt{ \frac{3}{2} {a}^{2} }$

c)
$\sqrt{ \frac{3}{2} }$

d)
$\sqrt{ \frac{3}{4}a}$

2. S is the triangle _____ of the triangle.

a) Area.
b) perimeter.
c) semi-perimeter.
d) Altitude.

3. S = _____.

a)
$\frac{abc}{3}$

b)
$\frac{a + b + c}{3}$

c)
$\frac{a - b - c}{2}$

d)
$\frac{a + b + c}{2}$

4. Area of triangle when base and height are given is_____Sq unit's.

a)
$\frac{1}{2} \times b \times h$

b)
$(b \times h)$

c)
$\frac{1}{2} (b + h)$

d)
$(b + h)$
5. The semi-perimeter of a triangle having sides 15cm,20cm,25cm is _____.

a) 60cm
b) 45cm
c) 30cm
d) 15cm

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Answer 1

Answer:

Oo, really

You don't need to be confused, it's clear that he loves you....

Hehe, really. Actually, ab kya hi bolu.... this is a condition of all girls

But I mind my class, and I don't write my bestie's name.... haha, and I write all boys name...XD

Anyway, you get you answer n