Divide 8m 40cm by 5 (Answer in centimeters) (A) 1m 68cm (B) 168cm
(C) 1680cm (D) 168m (E) 16800cm [ ]
show work

Step-by-step explanation:

8 m 40 cm

1 m = 100 cm

Then,

8 m = 8 × 100

= 800 cm

800 + 40 = 840 cm

Now,

It's divided by 5

Then,

840/5

= 168

Therefore,

Option B is correct ✔.

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)