Problem 97: Missing Numbers

Rich Tasks 45: Quadratic Functions Terminology

Use desmos.com to sketch the equations of the given graphs below. Then fill in the table.

Problem 96: Which is Greater?

Which colored area is the largest? Green, yellow or orange?

 

 

Problem 95: Find the unshaded area

The circles in the rectangle are identical. Using coordinates, find the unshaded area inside the rectangle. Coordinates given belong to centre of the full circle.

Rich Tasks 44: Rounding Practice

Math Pics 9: Which one is correct?

Rich Tasks 43: Number Challenge

Problem 94: Area Between 3-4-5 Triangles

Problem 93: Triangle or Square?

Problem 92: Two trains and a fly

Two trains, each travelling at a speed of  are headed toward each other on the same track. At the exact moment, the trains are  apart, a fly on the front of one train begins flying back and forth between the two trains at a speed of  As soon as the fly reaches one train, it can instantaneously turn and fly back towards the other one.

What is the total distance the fly will have travelled before getting crushed between the trains?

Source: Brilliant

Problem 91: What Fraction is Shaded? 2

Problem 90: What Fraction is Shaded?

Sources: @CDawson18, @Ousebank, @MathCeyhun, @_WTProject

Problem 89: 90-60-30

【オリジナル問題】６
図のように、3つの角が30°・60°・90°の直角三角形を6個つなげたとき、AB：BC＝[ ]である。 pic.twitter.com/c7u2jBP0kT

— den@オリジナル問題集⊿ (@sansu_original) February 9, 2019

View image on Twitter AB/BC ?