Given a square with the length of one side is 8 cm and a isosceles triangle with the length of its base is 12 cm. If the area of the square is equal to the area of the isosceles triangle then what is the length of the height of the isosceles triangle, in cm? 

Given the rectangle ABCD and the triangle BEC. Find the value of x such that the ratio of the area of the rectangle to the area of the triangle BEC is 7:3.

Answer: x = ....... cm.

1.Find the greatest negative integer value for n so that:

n⁴ - 25n² - 70n - 49 

2.Toán tiếng anh: If the length of a leg of a right angle is 11 and the lengths of the other two side are both positive integers, then the perimeter of a triangle is.............

Question 1:In a magic triangle, each of the six whole numbers 10; 11; 12; 13; 14; 15 is placed in one of the circles so that the sum, S, of the three numbers on each side of the triangle is the same. The largest possible value for S is____

Q2:Find the highest common factor of 147x and 98y if HCF(x;y)=1

Q3: A pattern of triangles is made from matches shown as follows

if there are 207 matches used, how many triangles has been formed

the area of an equilateral triangle is \(8\sqrt{12}cm^2\)

What is the perimeter of the triangle

if the line through the point (5;-3) and (-2;p) is parallel to the line y= -2x-3, what is the value of p?

trình bày cách giải hộ em

In a magic triangle, each of the six whole numbers 10; 11; 12; 13; 14; 15 is placed in one of the circles so that the sum, S, of the three numbers on each side of the triangle is the same. The largest possible value for S is ....

Ai bk thì giải giùm mik nha :) ( tiểu học ko bk thì đừng giải bậy nhak :) thanks 

Toán tiếng anh: If the length of a leg of a right angle is 11 and the lengths of the other two side are both positive integers, then the perimeter of a triangle is.............