Which classification best represents a triangle with side lengths 10 in., 12 in., and 15 in.?

a) acute, because 102+122> 152
b) acute, because 122+152> 102
c) obtuse, because 102+122> 152
d) obtuse, because 122+152> 102

Answer : Option A) acute, because .

Explanation : The given triangle has three sides which are:

∠A= 10 in; ∠B=12 in and ∠C=15 in

Using the theory for angles and the using the law of Cosines:

cos A =

On solving we get A = 41.65°

Now, cos B =

On solving we get, B = 52.89°

So, we can find C = 180° - 41.65° - 52.89°

Then C = 85.46° 

Therefore the answer is acute, because .

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.

step-by-step explanation:

what does 'mandy have ben 780 bottle caps. ' mean?