### Learning Math and Coding with Robots

 Grid: Tics Lines: Width px Hash Lines: Width px Labels: Font px Trace Lines: Robot 1: Width px Robot 2: Width px Robot 3: Width px Robot 4: Width px
 Axes: x-axis y-axis Show Grid Grid: 24x24 inches 36x36 inches 72x72 inches 96x96 inches 192x192 inches Quad: 4 quadrants 1 quadrant Hardware Units: US Customary Metric
 Background:

#### Robot 1

 Initial Position: ( in, in) Initial Angle: deg Current Position: (0 in, 0 in) Current Angle: 90 deg Wheel Radius: 1.75 in1.625 in2.0 in Track Width: in

#### Robot 2

 Initial Position: ( in, in) Initial Angle: deg Current Position: (6 in, 0 in) Current Angle: 90 deg Wheel Radius: 1.75 in1.625 in2.0 in Track Width: in

#### Robot 3

 Initial Position: ( in, in) Initial Angle: deg Current Position: (12 in, 0 in) Current Angle: 90 deg Wheel Radius: 1.75 in1.625 in2.0 in Track Width: in

#### Robot 4

 Initial Position: ( in, in) Initial Angle: deg Current Position: (18 in, 0 in) Current Angle: 90 deg Wheel Radius: 1.75 in1.625 in2.0 in Track Width: in

Draw an Umbrella with Slanted Rain
Problem Statement:
The pre-placed blocks will draw part of the umbrella. Edit the first loop so instead of 2 light blue circles, 5 circles are drawn to create the bottom edge of the umbrella. The raindrops are currently going straight down. Change them so they are at an angle of 45 degrees.
```/* Code generated by RoboBlockly v2.0 */
#include <chplot.h>
double i;
double j;
double x;
double y;
CPlot plot;

plot.backgroundColor("#ccffff");
plot.noStrokeColor();
plot.fillColor("red");
plot.arcSector(18, 14, 10, 45, 225);
plot.fillColor("#ccffff");
for(i = 1; i <= 5; i++) {
plot.circle(7.5 + 3 * i, 6 + 3 * i, 3);
}
plot.strokeColor("black");
plot.line(14.5, 17.5, 20, 12);
plot.arc(21, 13.1, 1.5, 225, 360);
plot.noStrokeColor();
plot.fillColor("#3366ff");
for(j = 1; j <= 25; j++) {
x = randint(1, 36);
y = randint(1, 36);
plot.circle(x, y, 0.5);
plot.regularPolygon(x - 0.4, y + 0.4, 3, 1, 45);
}
plot.strokeColor("black");
plot.text("Rain, rain go away!", PLOT_TEXT_LEFT, 4, 30);
plot.grid(PLOT_OFF);

plot.axisRange(PLOT_AXIS_XY, 0, 36);
plot.ticsRange(PLOT_AXIS_XY, 6);
plot.sizeRatio(1);
plot.plotting();```
 Blocks Save Blocks Load Blocks Show Ch Save Ch Workspace
Problem Statement:
The pre-placed blocks will draw part of the umbrella. Edit the first loop so instead of 2 light blue circles, 5 circles are drawn to create the bottom edge of the umbrella. The raindrops are currently going straight down. Change them so they are at an angle of 45 degrees.

Time