IDNLearn.com: Where questions are met with accurate and insightful answers. Join our knowledgeable community to find the answers you need for any topic or issue.

Need help with number 9 and number 10

Need Help With Number 9 And Number 10 class=

Sagot :

an acute triangle can have two acute angels.

Answer:

9. 3 acute angles

10: a) Acute Isosceles

     b) Acute Scalene  

Step-by-step explanation:

9:  Sum of Interior angle theorem: Sum of the interior angles of a Triangle = 180°

An Acute angle is a angle that is less than 90°

the sum of the two acute angles must be less than 180°

The base angles of an isosceles triangle are congruent.

So For example,

the base angles of the isosceles are ∠1 and ∠2

Lets make the three angle measure closer:

if ∠1 = 46° then ∠2 also have to be 46° and ∠3 = 88°

all three angle are less than 90° and two angles are congruent.