Whats 40% of 234,567?

ok heres the real question me with this geometry question

Part a)

Part b)

Step-by-step explanation:

Part a) we know that

To find out the 40% of 234,567, multiply the number 234,567 by 0.40

so

Part b) we know that

BA is perpendicular bisector of DC

That means

,

so

The triangles BED and BEC are congruent by SAS Congruence Theorem

BED≅ BEC

Remember that

If two figures are congruent, then its corresponding sides and its corresponding angles are congruent

therefore

BD ≅ BC

we have that

so

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.