Question

8. Find the area of an equilateral triangle of side (1) 4 cm (1) 5 cm (111) 7 cm correct to two
(11) base = 6 cm and hypotenuse = 10 cm
(LL) perpendicular = 60 cm and
hypotenuse = 61 cm.
places of decimal. (Use 3 = 1.732.)
length of its side
S​

Answer 1

Answer:

FORMULA OF EQUILATERAL TRIANGLE

root3/4 × (side)^2root3/4×(side)

2

Value of √3 = 1.732Valueof√3=1.732

1) Side = 4cm

》1.732/4 × 16 = 6.928 cm

2) Side = 5cm

》1.732/4 × 25 = 10.825 cm

3) Side = 7cm

》1.732/4 × 49 = 21.217 cm

BE BRAINLYBEBRAINLY

Answer 2

Answer:

FORMULA OF EQUILATERAL TRIANGLE

root3/4 x (side)^2root3/4x(side)

2

Value of √3 = 1.732Valueof√3=1.732

1) Side = 4cm

» 1.732/4 x 16 = 6.928 cm

2) Side = 5cm

» 1.732/4 x 25 = 10.825 cm

3) Side = 7cm

» 1.732/4 x 49 = 21.217 cm