A triangle has three sides 19cm 12cm and 16 cm. is it a right triangle

Step-by-step explanation:

A right triangle has one angle of 90.

If you add up all the angles ;

19+12+16= 47

It equals 47 so this is not a right triangle.

If it it is less than 90, it is an acute angle.

Therefore this angle is an acute triangle.

answer: there are x+184 pages in olivia's book.

step-by-step explanation:

let the total number of pages in the book which olive has already read be x.

then if olive has 184 pages left to read, then the total number of pages are in olive's book= pages she has read+pages she has left to read

therefore, the total number of pages in olivia's book=

hence, there are x+184 pages in olivia's book.