Question

please give the correct answer. Dont spam ​

Answer 1

Answer:

Using the formulas

A=s(sa)(s - b)(s - c)

s=a+b+c

2

Solving forA

A=1

4a4+2(ab)2+2(ac)2 - b4+2(bc)2 - c4=1

4.-304+2 (30.-25)2+2-(30-15)2 - 254+2 (25-15)2 - 154-187.08287cm²

Answer 2

, Answer:

<ADB = 90*, BC = 10

Step-by-step explanation:

The question itself says that BD is an altitude, hence the angle will be eventually 90*, because an altitude is a perpendicular line to the base. Here the base is AC.

A median is a line that divides the base into two equal parts. Here, therefore,

BN=NC

BN=5 (given)

BC= BN+NC

BC= 5+5

BC=10